Macroscale Objects—Memory Game
A large oak tree
is about 20 meters tall.
A full-size soccer ball is
70 centimeters in diameter.
Humpback whales are
about 14 meters long.
Blue Morpho butterflies have
a wingspan of about 15 centimeters.
At age 6 or 7, children
are around 1 meter tall.
Gecko lizards are
about 13 centimeters long.
Microscale Objects—Memory Game
Dust mites, arachnids that eat flakes
of dead skin, are 300 micrometers long.
Tiny feces from dust mites are
about 17 micrometers long.
The diameter of human hairs
ranges from 50-100 micrometers.
Red blood cells, which carry oxygen from our
lungs to our bodies, are about 7 micrometers across.
Pollen, which fertilizes seed plants,
can be about 50 micrometers in diameter.
E. coli bacteria, found in our intestines,
are around 2 micrometers long.
Nanoscale Objects—Memory Game
The 400-nanometer microribs in the
Blue Morpho butterfly’s wings reflect
light to create a blue iridescent color.
Carbon nanotubes are tiny
structures made of carbon,
several nanometers in diameter.
The 200-nanometer hairs on geckos’ feet
temporarily bond with surfaces,
making them really good climbers.
DNA molecules,
which carry genetic code,
are around 2.5 nanometers across.
The Ebola virus,
which causes a bleeding disease,
is around 80 nanometers long.
Buckyballs, molecules
made of 60 carbon atoms,
are 1 nanometer in diameter.